Jiangsu Hongbao Group Co., Ltd.
| Supply Ability | 30000MT per year |
| Delivery Time | within 50 days |
| Packaging Details | Original packaging according to the customers Export standard package in bundled or as required. |
| Material: | ST37.4,ST52.4,E235,E355,26MnB5,34MnB5 |
| OD: | 6-120mm |
| Thickness: | 0.5-15mm |
| Shape: | Round |
| Processing: | Cold Drawn, Cold Rolled |
| Certificate: | TS16949,DNV |
| Brand Name | Hongbao |
| Model Number | HBHST-1 |
| Certification | TS16949,DNV,PED,ISO,TUV,LR |
| Place of Origin | Jiangsu, China |
View Detail Information
Explore similar products
Round Carbon Steel Small 15mm Steel Tube DIN ST37.2 As Oil Cylinder Tube
Round ERW Welded Hollow Steel Tube ST52.4 E355 For Car Hydraulic System
Pickled Annealed Hollow Steel Tube Large Diameter E355 E235 Threading Available
Mechanical Structures Cold Drawn Seamless Tube Round Black 32mm Wall Thickness
Product Specification
| Supply Ability | 30000MT per year | Delivery Time | within 50 days |
| Packaging Details | Original packaging according to the customers Export standard package in bundled or as required. | Material: | ST37.4,ST52.4,E235,E355,26MnB5,34MnB5 |
| OD: | 6-120mm | Thickness: | 0.5-15mm |
| Shape: | Round | Processing: | Cold Drawn, Cold Rolled |
| Certificate: | TS16949,DNV | Brand Name | Hongbao |
| Model Number | HBHST-1 | Certification | TS16949,DNV,PED,ISO,TUV,LR |
| Place of Origin | Jiangsu, China | ||
| High Light | hollow steel bar ，round hollow tube | ||
Seamless Precision Hollow Carbon Steel Tube For Hydraulic Systems And Auto Parts
Description:
Chemical Composition and Mechanical Performance:
| Table 1- Chemical composition | ||||||
| Steel Grade | C% | Si% | Mn% | P% | S% | AL% |
| E215 | ≤0.10 | ≤0.05 | ≤0.7 | ≤0.025 | ≤0.025 | ≥0.025 |
| E235 | ≤0.17 | ≤0.35 | 0.4-1.2 | ≤0.025 | ≤0.025 | |
| E255 | ≤0.21 | ≤0.35 | 0.4-1.1 | ≤0.025 | ≤0.025 | |
| E355 | ≤0.22 | ≤0.55 | ≤1.6 | ≤0.025 | ≤0.025 | |
Delivery Conditions:
+C Hard. No final treatment after final cold drawing.
+LC Soft. Final heat treatment is followed by a suitable drawing pass (limited reduction of area).
+SR Stress Relieved. After final cold drawing, the tubes are stress relieved in a controlled atmosphere.
+A Annealed. After final cold drawing, the tubes are annealed in a controlled atmosphere.
+N Normalized. After final cold drawing, the tubes are normalized in a controlled atmosphere.
Process:
The cold drawn welded tube is produced by drawing ERW (electric resistance welded tube) through a die and over a mandrel plug.During this process the sizing (wall thickness, inside and outside diameter), as well as weld integrity and surface finish is closely controlled to produce tube of the required size and mechanical property characteristics.
Tube Finishing Options:
Our tubes can be additionally treated to achieve the exact finishes and ends needed by customers. These are some of the additional operations that can be performed on our tube:Drawing, Heat treatment, Bulging, Swaging, Cutting, Deburring, Vibro cleaning, Threading,De-rusting, Chamfering, Washing.
Surface treatment: Oiled, black painted, hot dipped galvanized or phosphate coating as required.
Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.
Standard AND Optional Testing:
Visual and dimensional test 100%.
Eddy current test 100% acc. to EN 10246-3.
Ultrasonic test 100% acc. to EN 10246-7.
Chemical composition.
Impact test.
Mill Test Certificate:
The product is supplied with 3.1.B inspection certificate,according to the standards EN 10204 and ISO 10474.
Company Details
Business Type:
Manufacturer
Year Established:
1958
Total Annual:
60000000-80000000
Employee Number:
700~1000
Ecer Certification：
Verified Supplier
Jiangsu Hongbao Group (Pipe) Co., Ltd. (Zhangjiagang Hongda Pipe Co., Ltd.) is a high-tech company in Jiangsu province. The company has a registered capital of RMB 89 million, covers an area of 130,000 square meters, employs 600 staff, and has annual sales of RMB 400 million. The company is speciali... Jiangsu Hongbao Group (Pipe) Co., Ltd. (Zhangjiagang Hongda Pipe Co., Ltd.) is a high-tech company in Jiangsu province. The company has a registered capital of RMB 89 million, covers an area of 130,000 square meters, employs 600 staff, and has annual sales of RMB 400 million. The company is speciali...
Get in touch with us
Leave a Message, we will call you back quickly!